With his readymades he pushed forward the concept of appropriation introduced by Picasso and Braque's experiments in synthetic cubism to the extreme.
From the economist.com
Synthetic cubism, with its application of found art, is not as great an influence on deconstructivism as Analytical cubism, but is still found in the earlier and more vernacular works of Frank Gehry.
From the en.wikipedia.org
There is a giddy freshness found in the synthetic cubist influence in his work, an aspect of abstraction he calls fluid cubism.